EP0514345A2 - Jointing machine continuous loop abrasive bands - Google Patents
Jointing machine continuous loop abrasive bands Download PDFInfo
- Publication number
- EP0514345A2 EP0514345A2 EP92830017A EP92830017A EP0514345A2 EP 0514345 A2 EP0514345 A2 EP 0514345A2 EP 92830017 A EP92830017 A EP 92830017A EP 92830017 A EP92830017 A EP 92830017A EP 0514345 A2 EP0514345 A2 EP 0514345A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- machine according
- rotating means
- arm
- jointing
- driving
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G3/00—Belt fastenings, e.g. for conveyor belts
- F16G3/16—Devices or machines for connecting driving-belts or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
- B24D11/06—Connecting the ends of materials, e.g. for making abrasive belts
Definitions
- This invention relates to a machine for jointing, through compression, of continuous loop abrasive bands produced with flexible support material such as paper, fabric, paper plus fabric, vulcanized fibre, laminated polymers or other.
- the aforesaid jointing is done by gluing the ends of a strip of abrasive material which, after suitable preliminary operations of chamfering, applying the adhesive, etc. are assembled for example overlapping or jointing the extremities using material to reinforce the joint; in the next stage of the jointing compression is applied which may be done by inserting manually or mechanically the relevant part of the band in a static gooseneck or "portal" press.
- the press however it is operated (hydraulically, pneumatically, mechanically or otherwise) comprises a moving element which presses the joint area against a fixed surface and maintains the necessary pressure for a few second.
- the mowing surface in contact with the joint area receives the pressure from a moving element (carriage) which, by moving backwards and forwards, transmits the pressure, through one or more rollers, to the aforesaid moving surface.
- a moving element carriage which, by moving backwards and forwards, transmits the pressure, through one or more rollers, to the aforesaid moving surface.
- the present invention seeks to obviate the above-mentioned inconveniences by producing a jointing machine for continuous loop abrasive bands comprising a structure that permits the assembly work inside the structure itself and a device, mounted on the said structure, which is able to provide the necessary compression for the jointing of the sufaces that are to be glued, by means of rotating elements that convey the piece during the working process until the expulsion of the same at the end of the operation, thus eliminating idle time.
- figure 1 present an overall view of the machine 2 including a base 4 and two inverted L-shaped arms 6 and 8 which are integral with the said base and rigidly connected by the cross-member 9; the arms may be parallel to one another, orthogonal or skew and in the illustrated example they are placed orthogonally.
- the upper arm 6 serves to bear the device including the rotating elements 10 and is shown in more detail in figure 2, while the lower arm 8, in addition to allowing the assebly of the abrasive ring on it (indicated at 12 in Figs. 3, 4, 5 and 6) acts as a support, in its horizontal part, for the two idler rollers 14, 16 between which the heating sliding-shole 18 is housed, as shown in figure 2.
- the said device 10 carried to the end of the horizontal part of the upper arm 6, consists of a movable plate 20 to which the ends of the rod of the two pneumatic cylindres 22a and 22b are anchored; the latter function as actuators of the pressing force which is applied between the device with the rotating elements 10 mounted on the upper arm and the idler rollers borne by the lower arm.
- the said plate 20 is integral with a supporting base 24 which has two parallel bearings 26a and 26b.
- the bearing 26b is traversed by the drive shaft 28 on which the pressure roller 30 is splined, the surface of the latter is coated with a consumable tread made of suitably hard material to guarantee a uniform distribution of the pressure along the contact surface, without compromising the integrity of the abrasive mineral with which it will be in contact (soft rubber technopolimer or other).
- the driving pulley 32 which transmits the movement, by means of the belt 34 and the driven pulley 36, to the driven shaft 38, which passes through the bearing 26a.
- the said shaft 38 causes the rotation of a secondary belt 40 which acts as a conveyor for the material that has to be treated.
- the said belt 40 is held in position by pulley 42 and by the idle driving roller 44 articulated to the said driven shaft 38 by connecting rod 46.
- the above described machine works, as illustrated schematically in figs. 3, 4, 5 and 6, in the following way: the operator places the abrasive band 12 under the horizontal part of the lower arm 8. assembles the ring around the said arm lining up the suitably treated surfaces and then pushes the ring obtained in this way between the belt 40 and the idler roller 14 so that the joint area is aligned with the direction of movement set by the previously described rollers.
- the ring then continues its advance pulled along the said rollers without any stops, as a stationary band pressing period is not necessary, thus permitting the operator to begin the assembly stage of another band.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
A machine (2) for jointing continuous loop abrasive bands (12) comprising a structure permitting the assembly work inside the structure itself and a device (10), mounted on the said structure, which is able to exerting the necessary compression for jointing the surfaces to be glued by means of rotating elements that convey the piece during the working process until the expulsion of the same at the end of the operation, thus eliminating idle time.
Description
- This invention relates to a machine for jointing, through compression, of continuous loop abrasive bands produced with flexible support material such as paper, fabric, paper plus fabric, vulcanized fibre, laminated polymers or other.
- It is know that the aforesaid jointing is done by gluing the ends of a strip of abrasive material which, after suitable preliminary operations of chamfering, applying the adhesive, etc. are assembled for example overlapping or jointing the extremities using material to reinforce the joint; in the next stage of the jointing compression is applied which may be done by inserting manually or mechanically the relevant part of the band in a static gooseneck or "portal" press. The press, however it is operated (hydraulically, pneumatically, mechanically or otherwise) comprises a moving element which presses the joint area against a fixed surface and maintains the necessary pressure for a few second. In the other types of presses the mowing surface in contact with the joint area receives the pressure from a moving element (carriage) which, by moving backwards and forwards, transmits the pressure, through one or more rollers, to the aforesaid moving surface.
- In this case the band remains stationary for the complete pressing stage. The process terminates with the manual or mechanical extraction of the solidly welded band.
- The above-mentioned traditional presses has many inconveniences, including:
- a high working time due to the sum of the: insertion of the piece, the downward movement of the moving part, the actual pressing time, the upward movement of the moving part or the two-way traverse of the pressing carriage and the extraction of the piece;
- the requirement to use considerable force due to the need to apply the correct pressure during the gluing operation on the entire jointing surface;
- a certain intrisic dangerousness of the working system which makes the use of uncomfortable safety devices advisable, thus making the work more difficult and less productive.
- The present invention seeks to obviate the above-mentioned inconveniences by producing a jointing machine for continuous loop abrasive bands comprising a structure that permits the assembly work inside the structure itself and a device, mounted on the said structure, which is able to provide the necessary compression for the jointing of the sufaces that are to be glued, by means of rotating elements that convey the piece during the working process until the expulsion of the same at the end of the operation, thus eliminating idle time.
- Embodiments of the invention will now be described, by way of example only, with reference to the accompanying drawings, wherein:
- Figure 1 is a prospective view of the jointing machine in accordance with the present invention;
- Figure 2 is a prospective and enlarged view of the device with the rotating elements of the machine of Fig. 1;
- Figure 3, 4, 5 and 6 are views of the machine in various operating phases.
- With reference to the drawings, figure 1 present an overall view of the
machine 2 including abase 4 and two inverted L-shaped arms cross-member 9; the arms may be parallel to one another, orthogonal or skew and in the illustrated example they are placed orthogonally. - The
upper arm 6 serves to bear the device including therotating elements 10 and is shown in more detail in figure 2, while thelower arm 8, in addition to allowing the assebly of the abrasive ring on it (indicated at 12 in Figs. 3, 4, 5 and 6) acts as a support, in its horizontal part, for the twoidler rollers shole 18 is housed, as shown in figure 2. - The
said device 10, carried to the end of the horizontal part of theupper arm 6, consists of amovable plate 20 to which the ends of the rod of the two pneumatic cylindres 22a and 22b are anchored; the latter function as actuators of the pressing force which is applied between the device with the rotatingelements 10 mounted on the upper arm and the idler rollers borne by the lower arm. - The said
plate 20 is integral with a supportingbase 24 which has twoparallel bearings 26a and 26b. Thebearing 26b is traversed by thedrive shaft 28 on which thepressure roller 30 is splined, the surface of the latter is coated with a consumable tread made of suitably hard material to guarantee a uniform distribution of the pressure along the contact surface, without compromising the integrity of the abrasive mineral with which it will be in contact (soft rubber technopolimer or other). - Splined on the same drive shaft, driven by a geared motor mounted on the structure, is the driving
pulley 32 which transmits the movement, by means of thebelt 34 and the drivenpulley 36, to the drivenshaft 38, which passes through the bearing 26a. The saidshaft 38 causes the rotation of asecondary belt 40 which acts as a conveyor for the material that has to be treated. - The said
belt 40 is held in position bypulley 42 and by theidle driving roller 44 articulated to the said drivenshaft 38 by connectingrod 46. - The above described machine works, as illustrated schematically in figs. 3, 4, 5 and 6, in the following way: the operator places the
abrasive band 12 under the horizontal part of thelower arm 8. assembles the ring around the said arm lining up the suitably treated surfaces and then pushes the ring obtained in this way between thebelt 40 and theidler roller 14 so that the joint area is aligned with the direction of movement set by the previously described rollers. - The ring then continues its advance pulled along the said rollers without any stops, as a stationary band pressing period is not necessary, thus permitting the operator to begin the assembly stage of another band.
- It will be possible to furnish the machine with various technically known equipment such as those relative to applying a reinforcement film, the gluing of the said reinforcement film and to the heat treatment of pre-glued or heat-activatable reinforcement film. The machine in question may also be used for the assebly of the band without the final pressing.
Claims (11)
- Jointing machine for continuous loop abrasive bands comprising a support structure including a base and a reinforcing crossmember; a first arm and a second arm; a compressing device; first rotating means mounted on the first of said two arms and second rotating means mounted on the second of said arms for exerting the necessary compression, jointing the surfaces to be glued and conveying the abrasive bands during the working process until the expulsion of the bands at the end of the operation; heating means housed between the said rotating means; driving means for transmitting rotational movement to said rotating means.
- Machine according to claim 1, in which said first and second arm are inverted L-shaped structures.
- Machine according to claim 1, in which said compressing device comprise a movable plate connected to a supporting means containing a first and a second bearing for said driving means.
- Machine according to claim 1 and 3, in which said driving means comprise a driveing shaft supported by the said first bearing, a driven shaft supported by the said second bearing, a driving pulley connected to the said driving shaft which transmits the movement, by means of a belt and a driven pulley, to the said driven shaft.
- Machine according to claim 1 or 4, in which said first rotating means comprise a roller coated with a consumable tread connected to the said driving shaft and a couple of rollers connected by a flask and provided with a belt to lead the abrasive band; said couple of rollers being connected to the said driven shaft.
- Machine according to claim 1 in which said second rotating means are two idler rollers between which the said heating mean is housed.
- Machine according to claim 1 or 6 in which said heating mean is a guide block which warms up by friction.
- Machine according to claim 3, in which said movable plate carry the ends of the rod of two pneumatic cylinders that function as actuators of the pressing force which is applied between said first rotating means and said second rotating means.
- Machine according to claim 1, in which said first upper arm and said second lower arm are placed orthogonally to one another.
- Machine according to claim 1, in which said first upper arm and said second lower arm are parallel to one another.
- Machine according to claim 1, in which said first upper arm and said second lower arm are skew to one another.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITTO910041 | 1991-01-24 | ||
ITTO910041A IT1245277B (en) | 1991-01-24 | 1991-01-24 | MACHINE FOR THE JOINTING OF ABRASIVE BELTS WITH CLOSED RING |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0514345A2 true EP0514345A2 (en) | 1992-11-19 |
EP0514345A3 EP0514345A3 (en) | 1993-04-28 |
Family
ID=11408815
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19920830017 Withdrawn EP0514345A3 (en) | 1991-01-24 | 1992-01-20 | Jointing machine continuous loop abrasive bands |
Country Status (3)
Country | Link |
---|---|
US (1) | US5196084A (en) |
EP (1) | EP0514345A3 (en) |
IT (1) | IT1245277B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1147857A2 (en) * | 2000-04-21 | 2001-10-24 | Metis Srl | Apparatus for joining closed-loop abrasive belts |
EP1611999A1 (en) * | 2004-06-30 | 2006-01-04 | Metis Srl | A device and method for automatic recognition of the processing surface of the joining flaps of endless-loop abrasive belts |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2149343A (en) * | 1936-03-14 | 1939-03-07 | Bell Telephone Labor Inc | Signaling system |
US2660220A (en) * | 1951-05-25 | 1953-11-24 | Armour & Co | Glue-joining and press apparatus and method of joining the ends of abrasive strips |
US3257257A (en) * | 1962-09-15 | 1966-06-21 | Heimbach Gmbh Thomas Josef | Seam welding apparatus |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4865675A (en) * | 1986-09-25 | 1989-09-12 | Canon Kabushiki Kaisha | Process of and apparatus for hot pressure adhesion treatments |
-
1991
- 1991-01-24 IT ITTO910041A patent/IT1245277B/en active IP Right Grant
-
1992
- 1992-01-20 EP EP19920830017 patent/EP0514345A3/en not_active Withdrawn
- 1992-01-24 US US07/825,280 patent/US5196084A/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2149343A (en) * | 1936-03-14 | 1939-03-07 | Bell Telephone Labor Inc | Signaling system |
US2660220A (en) * | 1951-05-25 | 1953-11-24 | Armour & Co | Glue-joining and press apparatus and method of joining the ends of abrasive strips |
US3257257A (en) * | 1962-09-15 | 1966-06-21 | Heimbach Gmbh Thomas Josef | Seam welding apparatus |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1147857A2 (en) * | 2000-04-21 | 2001-10-24 | Metis Srl | Apparatus for joining closed-loop abrasive belts |
EP1147857A3 (en) * | 2000-04-21 | 2003-10-29 | Metis Srl | Apparatus for joining closed-loop abrasive belts |
EP1611999A1 (en) * | 2004-06-30 | 2006-01-04 | Metis Srl | A device and method for automatic recognition of the processing surface of the joining flaps of endless-loop abrasive belts |
Also Published As
Publication number | Publication date |
---|---|
ITTO910041A0 (en) | 1991-01-24 |
EP0514345A3 (en) | 1993-04-28 |
ITTO910041A1 (en) | 1992-07-24 |
US5196084A (en) | 1993-03-23 |
IT1245277B (en) | 1994-09-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN110104496B (en) | Adhesive tape sticking device | |
GB2227779A (en) | Fitting sealing strips | |
EP0514345A2 (en) | Jointing machine continuous loop abrasive bands | |
US5679205A (en) | Apparatus for severing and shaping a strip of elastomeric material | |
US2290762A (en) | Machine for edge gluing veneer strips | |
KR910005131B1 (en) | Joining device for corrced belt-shaped mate | |
US4222323A (en) | Tire bundling machine | |
CN116495536A (en) | Waterproof film non-winding core automatic winding device and waterproof film winding method | |
US3970509A (en) | Apparatus for simultaneously cutting, sealing and stitching thermoplastic material | |
CN213356478U (en) | Automatic adhesive tape bonding machine | |
JPS59209803A (en) | Device for assembling and coupling flat workpiece | |
US2660220A (en) | Glue-joining and press apparatus and method of joining the ends of abrasive strips | |
JP2623339B2 (en) | Glue applicator for bookbinding | |
KR0173224B1 (en) | Auto-assembling device for navid and filler | |
EP0403024A1 (en) | Method and apparatus for welding together sheets of woody material | |
KR100367705B1 (en) | Film Auto-Packer and the Packing Method thereof | |
CN213265444U (en) | Auxiliary carrying equipment | |
CN212632121U (en) | Glue coating device for filter cylinder strap | |
CN107807469A (en) | A kind of assembling device applied to more pin workpiece | |
CN220052222U (en) | Disassembly-free heat preservation template production line | |
CN116984790B (en) | Intelligent welding production platform for automobile sheet metal parts and application method of intelligent welding production platform | |
CN218533978U (en) | Automatic system of polishing of disjunctor hammer | |
JP2639761B2 (en) | Method and apparatus for supplying strip material for tire construction | |
CN220051659U (en) | Door pocket layering binding device | |
CN210999175U (en) | Tooth-jointed longitudinal and transverse splicing machine |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): CH DE ES FR GB LI |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): CH DE ES FR GB LI |
|
17P | Request for examination filed |
Effective date: 19940107 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19940801 |